Run HAL operation once per input

#!/usr/bin/python
"""Usage:
    python train.py

You must ". scripts/emc-environment" before running this script, if you use
run-in-place.
"""

#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

import hal
import sys
import linuxcnc

s = linuxcnc.stat()

def get_cart():
    s.poll()
    position = "G01 X%-8.4f Y%-8.4f Z%-8.4f A%-8.4f B%-8.4f C%-8.4f\n" % ( s.position[0], s.position[1], s.position[2], s.position[3], s.position[4], s.position[5] )
    return position

h = hal.component("train")
h.newpin ("record", hal.HAL_BIT, hal.HAL_IN)

outfile = "train.ngc"

h.ready()

try:
    while 1:
	if h["record"] == 1:
	    f = open(outfile, 'a')
	    pos = get_cart()
	    f.write(pos)
	    f.close()

except KeyboardInterrupt:
	raise SystemExit

loadusr -W train
loadrt oneshot
addf oneshot.0 servo-thread
setp oneshot.0.width 0.0001
net save-ons input.0.btn-tr oneshot.0.in
net save-position oneshot.0.out train.record

loadrt debounce cfg=1
addf debounce.0 servo-thread
setp debounce.0.delay 200
## DEBOUNCE
net save-deb input.0.btn-tr debounce.0.0.in
net save-position debounce.0.0.out train.record

if record_pin = true and old_record_pin = false then
     record_one_sample
endif
old_record_pin <= record_pin

#!/usr/bin/python
"""Usage:
    python train.py

You must ". scripts/emc-environment" before running this script, if you use
run-in-place.
"""

#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

import hal
import sys
import linuxcnc

s = linuxcnc.stat()

def get_cart():
    s.poll()
    position = "G01 X%-8.4f Y%-8.4f Z%-8.4f A%-8.4f B%-8.4f C%-8.4f\n" % ( s.position[0], s.position[1], s.position[2], s.position[3], s.position[4], s.position[5] )
    return position

h = hal.component("train")
h.newpin ("record", hal.HAL_BIT, hal.HAL_IN)

outfile = "train.ngc"
record_pin = 0
old_record_pin = 0

h.ready()

try:
	while 1:
		old_record_pin = record_pin
		record_pin = h["record"]
		if record_pin == 1 and old_record_pin == 0:
			f = open(outfile, 'a')
			pos = get_cart()
			f.write(pos)
			f.close()

except KeyboardInterrupt:
	raise SystemExit

loadusr -W train
net save-position input.0.btn-tr train.record